The serial number stamped on the nameplate consists or 8 or 9 characters. The first 2 numbers are the year the compressor was manufactured, and the 3rd character, a letter, denotes the month of manufacture.
Your Ingersoll-Rand Compressor will have a silver decal with all identifying information on the air receiver tank. The decal is almost always located near the discharge port on the tank.
For both one-stage and two-stage compressors, Ingersoll-Rand recommends XL-300 Compressor oil. XL300 is non synthetic, and free from chemical and additives.
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